67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
/*
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* spcflags.hpp - CPU special flags
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*
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* Kheperix (C) 2003-2005 Gwenole Beauchesne
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef SPCFLAGS_H
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#define SPCFLAGS_H
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/**
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* Basic special flags
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**/
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enum {
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SPCFLAG_CPU_EXEC_RETURN = 1 << 0, // Return from emulation loop
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SPCFLAG_CPU_TRIGGER_INTERRUPT = 1 << 1, // Trigger user interrupt
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SPCFLAG_CPU_HANDLE_INTERRUPT = 1 << 2, // Call user interrupt handler
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SPCFLAG_CPU_ENTER_MON = 1 << 3, // Enter cxmon
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SPCFLAG_JIT_EXEC_RETURN = 1 << 4, // Return from compiled code
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};
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class basic_spcflags
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{
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uint32 mask;
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spinlock_t lock;
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public:
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basic_spcflags()
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: mask(0), lock(SPIN_LOCK_UNLOCKED)
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{ }
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bool empty() const
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{ return (mask == 0); }
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bool test(uint32 v) const
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{ return (mask & v); }
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void init(uint32 v)
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{ spin_lock(&lock); mask = v; spin_unlock(&lock); }
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uint32 get() const
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{ return mask; }
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void set(uint32 v)
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{ spin_lock(&lock); mask |= v; spin_unlock(&lock); }
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void clear(uint32 v)
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{ spin_lock(&lock); mask &= ~v; spin_unlock(&lock); }
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};
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#endif /* SPCFLAGS_H */
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